Abstract: The present invention relates to a polarization filter for ophthalmic lenses. The polarization filter comprises a mesogen layer coated onto a retardation film, either directly or through an adhesive layer. The present invention further discloses that the polarization filter formed by employing a thin film or sheet, having a defined level of retardation between the light source and the mesogen layer, for example, a cholesteric mesogen layer, the multilayered laminate structure demonstrates linear polarization of the light transmitted through the mesogen laminate structure, and, hence, can be used in ophthalmic lenses, e.g. spectacle or eyeglass lenses. The polarization filter enhances the performance by allowing transmission of the polarization filter closer to the theoretical maximum transmission.

Abstract: The present invention relates to a polarization filter for ophthalmic lenses. The polarization filter comprises a mesogen layer coated onto a retardation film, either directly or through an adhesive layer. The present invention further discloses that the polarization filter formed by employing a thin film or sheet, having a defined level of retardation between the light source and the mesogen layer, for example, a cholesteric mesogen layer, the multilayered laminate structure demonstrates linear polarization of the light transmitted through the mesogen laminate structure, and, hence, can be used in ophthalmic lenses, e.g. spectacle or eyeglass lenses. The polarization filter enhances the performance by allowing transmission of the polarization filter closer to the theoretical maximum transmission.

Abstract: A wire grid polarizer comprises parallel grids of composite wires wherein each grid includes a coating stack having at least one high refractive index material coated on an aluminum layer. The coating stack comprising at least one high refractive index material reduces the reflection of the wire grid polarizer from between 40-50% to between 5-10%. Possible candidates for the high refractive index materials include Ge, Si and alloys of these materials having refractive indices greater than 3 with extinction coefficients above 0.2.

Abstract: An ophthalmic article having a coating system which provides antireflective, easy clean and anti-fogging properties to the ophthalmic article. The coating system includes alternating layers of low refractive index and high refractive index metal oxides and a sol-gel based hydrophilic top layer formed of one or more silanes, one or more alcohols, DI water and itaconic acid. The coating system provides favorable surface energy and particle size distribution to the ophthalmic article when the sol-gel based top layer is deposited on top surface of the alternating layers of low refractive index and high refractive index metal oxides.

Abstract: The present invention relates to a polarization filter for ophthalmic lenses. The polarization filter comprises a mesogen layer coated onto a retardation film, either directly or through an adhesive layer. The present invention further discloses that the polarization filter formed by employing a thin film or sheet, having a defined level of retardation between the light source and the mesogen layer, for example, a cholesteric mesogen layer, the multilayered laminate structure demonstrates linear polarization of the light transmitted through the mesogen laminate structure, and, hence, can be used in ophthalmic lenses, e.g. spectacle or eyeglass lenses. The polarization filter enhances the performance by allowing transmission of the polarization filter closer to the theoretical maximum transmission.

Abstract: A system and method for coating an optical lens by, for example vapor deposition, that employs a housing or drum having a plurality of apertures that each receives a lens holder assembly. The lens holding assembly configured to hold a standard, uncut optical lenses or lens blanks or, alternatively, to hold cut, non-standard shaped and sized optical lenses.

Abstract: A system and method for coating an optical lens by, for example vapor deposition, that employs a housing or drum having a plurality of apertures that each receives a lens holder assembly. The lens holding assembly configured to hold a standard, uncut optical lenses or lens blanks or, alternatively, to hold cut, non-standard shaped and sized optical lenses.